Aflah, the brother of Abu Quays, sought permission to enter upon Ayesha, but she refused to grant him permission. When the Prophet ﷺ arrived, she said, "Messenger of Allah, Aflah, the brother of Abu Quays, sought permission to enter upon me, and I refused to grant it."He said, "Allow him in."She said, "Messenger of Allah, it was the woman who nursed me, not the man."He said, "Allow him in, for he is your uncle. May your right hand be covered with dust."
حدثنا عبد الأعلى عن معمر عن الزهري
أن أفلح أخا أبي قعيس استأذن على عائشة فأبت أن تأذن له فلما أن جاء النبي ﷺ قالت يا رسول الله إن أفلح أخا أبي قعيس استأذن علي فأبيت أن آذن له فقال ائذني له قالت يا رسول الله إنما أرضعتني المرأة ولم يرضعني الرجل قال ائذني له فإنه عمك تربت يمينك
Its isnad is sahih. Bukhari narrated it in Fath al-Bari 5/253, no. 2644, in the chapter on testimonies, Muslim in 2/1069, no. 1445, in the chapter on breastfeeding, Abu Dawud in 2/222, no. 2057, Tirmidhi in 3/445, no. 1148, Nasai in 6/99, no. 3307, and Ibn Majah in 1/627, no. 1948, all of them in the chapter on marriage.